10887931 has 6 divisors (see below), whose sum is σ = 11476140. Its totient is φ = 10301256.

The previous prime is 10887923. The next prime is 10887941. The reversal of 10887931 is 13978801.

It is not a de Polignac number, because 10887931 - 2³ = 10887923 is a prime.

It is a super-2 number, since 2×10887931² = 237094082921522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10887941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14005 + ... + 14761.

It is an arithmetic number, because the mean of its divisors is an integer number (1912690).

Almost surely, 2^10887931 is an apocalyptic number.

10887931 is a deficient number, since it is larger than the sum of its proper divisors (588209).

10887931 is an frugal number, since it uses more digits than its factorization.

10887931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 10887931 is about 3299.6865002603. The cubic root of 10887931 is about 221.6401591408.

The spelling of 10887931 in words is "ten million, eight hundred eighty-seven thousand, nine hundred thirty-one".